题目内容
计算:
(1)(-15)-18÷(-3)+|-5|;
(2)(-
)2÷
-12×(
-
).
(1)(-15)-18÷(-3)+|-5|;
(2)(-
| 1 |
| 3 |
| 1 |
| 33 |
| 2 |
| 3 |
| 1 |
| 6 |
(1)原式=-15+6+5
=-4;
(2)原式=
×27-8+2
=3-8+2
=-3.
=-4;
(2)原式=
| 1 |
| 9 |
=3-8+2
=-3.
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